Ref. L3.740.3.56.7
Quartz 41mm | Stainless Steel & Yellow Gold PVD | Full Set
Every watch tells a story, and this one is a masterclass in bridging the gap between rugged, high-performance utility and refined evening elegance. The Longines HydroConquest has long been celebrated as a benchmark in modern luxury diving watches. In this striking two-tone configuration, it sheds the purely utilitarian aesthetic of standard tool watches, offering a bold, high-contrast look that transitions seamlessly from the ocean to the office.
The Design & History
Longines has a rich heritage of aquatic exploration, and the HydroConquest collection serves as a modern homage to that legacy. Built around a robust 41mm stainless steel case, this reference features eye-catching yellow gold PVD accents on the crown, the unidirectional rotating bezel, and the center links of the oyster-style bracelet. The sunray black dial provides the perfect backdrop, allowing the gold-tone hands, polished Arabic numerals, and Swiss Super-LumiNova markers to jump forward with crisp legibility. Reliable, sharp, and undeniable on the wrist, it is a quintessential Swiss sports watch with a luxurious edge.
Longines HydroConquest Two-Tone Black Dial
- Brand: Longines
- Model: HydroConquest
- Reference: L3.740.3.56.7
- Movement: Swiss Quartz (Calibre L157)
- Case Size: 41mm
- Case Material: Stainless Steel & Yellow Gold PVD Coating
- Dial: Sunray Black with Date Window
- Glass: Scratch-Resistant Sapphire Crystal (Underside Anti-Reflective Coating)
- Water Resistance: 300m (30 Bar)
- Bracelet: Two-Tone Stainless Steel & Gold PVD with Double Safety Folding Clasp














